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Finding the Fourth Proportional to 37.02, 51.08 and 27.20

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Solution

The fourth proportional to 37.02, 51.08 and 27.20 is: 37.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    37.02 : 51.08 = 27.20 : x
  2. Step 2: Convert to fraction form
    37.02/51.08 = 27.20/x
  3. Step 3: Cross multiply
    37.02x = 51.08 × 27.20
  4. Step 4: Simplify right side
    37.02x = 1,389.38
  5. Step 5: Solve for x
    x = 1,389.38/37.02
  6. Step 6: Final answer
    x = 37.53

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.